A Thai teenager has confessed to robbing and murdering a taxi driver after trying to imitate scenes from the controversial "Grand Theft Auto" video game, police said on Monday. The 18-year-old high school student, now in custody pending further investigations and a trial, faces death by lethal injection if found guilty of robbing and killing a 54-year-old taxi driver with a knife at the weekend.

Police said the youth, an obsessive player of the video game, showed no sign of mental problems during questioning and had confessed to committing the crime explicitly because of the game.

"He said he wanted to find out if it was as easy in real life to rob a taxi as it was in the game," chief investigator Veeravit Pipattanasak told Reuters. The youth, described by his parents as polite and diligent, was arrested late on Saturday after he was found trying to steer a cab backwards out of a Bangkok street with the severely wounded driver in the back seat, newspapers reported.